Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
210014excellentexcellent31excellent
200012excellentexcellent21excellent
19009excellentexcellent11excellent
180010excellentexcellent11excellent
17006excellentexcellent11excellent
160013excellentexcellent21excellent
150017excellentexcellent31excellent
140014excellentexcellent31excellent
130020excellentexcellent41excellent
120027goodexcellent41excellent
110028goodexcellent41excellent
100034goodexcellent61excellent
090063lightly pollutedexcellent101excellent
080097lightly pollutedexcellent171excellent
0700111moderately pollutedexcellent191excellent
060083lightly pollutedexcellent161excellent
050092lightly pollutedexcellent131excellent
040082lightly pollutedexcellent121excellent
030085lightly pollutedexcellent121excellent
020082lightly pollutedexcellent121excellent
010069lightly pollutedexcellent111excellent
000087lightly pollutedexcellent121excellent
2300104moderately pollutedexcellent141excellent
2200101moderately pollutedexcellent161excellent